220030221 has 16 divisors (see below), whose sum is σ = 304056000. Its totient is φ = 141364608.

The previous prime is 220030193. The next prime is 220030243. The reversal of 220030221 is 122030022.

220030221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220030221 - 2¹⁷ = 219899149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220030197 and 220030206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220730221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51630 + ... + 55728.

It is an arithmetic number, because the mean of its divisors is an integer number (19003500).

Almost surely, 2^220030221 is an apocalyptic number.

It is an amenable number.

220030221 is a deficient number, since it is larger than the sum of its proper divisors (84025779).

220030221 is a wasteful number, since it uses less digits than its factorization.

220030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220030221 is about 14833.4156889100. The cubic root of 220030221 is about 603.7087146046.

Adding to 220030221 its reverse (122030022), we get a palindrome (342060243).

The spelling of 220030221 in words is "two hundred twenty million, thirty thousand, two hundred twenty-one".